Britney's Ex-Friend Accused of Psychotic Stalking

9/10/2010 5:20 PM PDT BY TMZ STAFF

Sam Lutfi -- the infamous ex-friend of Britney Spears -- has just been slapped with a restraining order accusing him of nothing short of psychotic and extremely dangerous behavior.

Samuel Barth -- an aspiring actor/model -- claims Lutfi developed such an obsession toward him that he hacked into his email, Facebook and Twitter accounts and set out on a campaign to terrorize and vilify Barth's mother and other relatives.

Barth says he moved to L.A. From Virginia in January and rented an apartment near Lutfi, eventually moving in with him. They became friends, but according to legal docs obtained by TMZ, Lutfi quickly became obsessed, first trying to diagnose Barth with "various mental and emotional problems and forcefully suggesting solutions" -- eerily similar to what Lutfi allegedly did to Britney Spears.

Barth tried to distance himself from Lutfi and that's when the alleged campaign of terror began. Barth claims in his declaration Lutfi tried to drive a wedge between Barth and his mother, calling her "evil," a "bitch" and "Satan," among other things. Lutfi sent emails and texts to Barth's mom, telling her how she "viciously destroyed" the lives of her kids. Lutfi emailed Barth's underage sister (about the mom and aunt), "I wish those two sick women the most evil and painful death possible." Again, similar to Sam trying to turn Britney against her mom and dad.